Universal wind-chest for pipe-organs.



PATENTED AUG. 20, 1907.

G- WEIOKHARDT- UNIVERSAL WIND CHEST FOR PIPE ORGANS.

LPYLIOLTIOI FILED JAN. 25. 1907 3 SHEETS-SHEET 1.

N0. 863,768- PATENTED AUG. 20, 1907'.

I G- WEIGKHARDT- UNIVERSAL WIND CHEST FOR PIPE ORGAN-S.

' urmornox nun 1111.25, 1907.-

a snnmsqnnm 2.

PATENTED AUG. 20, 1907.

G. WEIGKHARDT.

UNIVERSAL WIND CHEST FDR PIPE ORGANS.

APPLIOATION FILED 3 111.25, 1907.

3 BHEETS-BHEET 3- nwnhwd.

.GEORGE WEI-CKHARDT, or MILWAUKEE, Wisconsin.

- UNIVERSAL wmn-crrns'r non PIPE-ORGANS.

Specification of Letters Patent.

Patented Aug. 20, 1967.

Application filed January 25, 1907. Serial No. 354,040.

To all whom itpmay concern:

Be it knownthat I, GEORGE WEICKHARDT, residing in Milwaukee, in the county of Milwaukee and State of Wisconsin, have invented new and useful Improvements in Universal Wind-Chests for Pipe-Organs, of

which the following is a'description, reference being matic pipe-valve for universal wind chests comprising a valve stem which ismounted so as to have a single fixed bearing, its one end carrying a disk valve for closing the pipe duct and its other end being connected with a leather or membrane pneumatic for actuating it.

Another object of this invention is to provide adjust able guards for disk pipe-valves of an organ, which will prevent the valves leaving their seats farther than is necessary for the proper supply of air to the pipes in order that they may more quickly respond to the closing impulse. A i

Another object of this invention is to improve upon general details of construction of a universal wind chest for organs.

With the above and other objects in view the invention consists in the universal wind chest for organs, its parts and combinations of parts as herein claimed and all equivalents. I

Referring to the accompanying drawings in' which like characters of reference indicate the same parts in the several:views:Figure 1 is a transverse sectional view of a universal wind chest for organsconstructed in accordance with this invention; Fig. 2 is a longitudinal sectional view through one stop section thereof on-the line 2-2 of Fig. 1; Fig. 3 is a longitudinal sectional view of one of the pneumatic pipe-valves; Fig. 4

is a similar viewtaken on a plane at right angles to the sectional plane of Fig. .3; and, Fig. 5 is a bottom view of one 01' the adjustable guards for the disk pipe-valves.

In these drawings, 10 represents side pieces and 11 end pieces of a rectangular frame constituting the inclosure of the wind chest, there being open partitions 12 extending longitudinally through the interior thereof at intervals which mark the several separate stop sections of which the wind chestis composed. Thewind chest is covered by a series of upper boards 13 extending lengthwise thereof and meeting each other upon the partitions means of screws 14. correspondingly, the bottom of the wind chest is closed by means of aseries of channel boards 15, running lengthwise ot' the frame, which are also secured to the partitions 12 and the frame. Connecting bars 16 extend beneath the meeting edges'oi the channel boards to complete the sections of the channels 17 which extend through and a'cross each channel board 15 and open on its bottom face near the edges, these connecting bars having similar channel sections 18 registering with the ends of the channel sections of the abutting channel boards, and the clamp ing screws 19 passing through the connecting bars and between the channel boards and into the partitions 12 'to secure these parts together. Each channel board 15 forms the bottom of a stop duct 20 which is inclosed v by side strips 21 and end strips 22 and occupies nearly the entiresuriace of the channel board within the wind chest. Top boards 23 coverthe stop ducts and are fas- 24, so as to be removable therefrom for repair.. The

, stop ducts 20 are tightly sealed by their-inclo'sing walls and have no free communication with each other or with the universal chamber 25 thereabove, though the latter extends over all of them, communicating from section to section through the openings 26 in the partitions 12.

On the under side of each top board 23 and contained within the stop duct are mounted a series of pneu matics 27 which are staggered in their arrangement so as to lie directly. beneath pipe ducts 28 formed in the upper board 13. Valve stems 29 are mounted on the movable disks of the pneumatics 27 and extendnpwardly through openings in the top boards 23 and through guide tubes 30 fitting in said openings, with disk valves 31 loosely carried on their upper ends between leather nuts 32 and seated on the cover boards 13 to close the pipe ducts 28. The valve stems 29 are guided in their movements by passing through neatly fitting openings in guide disks 33 whichare set in the upper ends of tubes 30, and coil springs 34 surround the valve stems and bear on the guide disks 33 at one end and on leather nuts 35 on the valve stems atthe other end to lift the disk valves 31 and hold them against their seats. The guide disks 33 are preferably of leather fiber, which has been found in practice to be most suitable for the purpose, since it permits of a close'fit with the valve stems allowing of their iree movement without a material leakage of air therethrhngh. 1

Adjustable guards for limiting the degree of movetened to the" side strips 21 and end strips 22 by screws ment of the .disk valves are provided, andlcomprise sheet metal strips 36 with their lower ends curved to fit the sides of the tubes30 and-adjustably held thereto.

by means of screws 37 passing through elongated slots of the strips and entering thetubes, the upper ends of the strips being bent over and forked to extend on opposite sides of the valve stems without touching them. When the disk valve 31 is opened by the operation pf the pneumatic 27, the lower leather nut 32 en-- gages the forked end of the guard strip 36 and prevents a further movement thereof, thus limiting the degree of opening of the disk valve to an extent which will allow -the desired passage for the air to the pipe, but

will preventa greater opening in order that the valve may not have so far to move on closing and may there fore,accomplish this action more promptly; The curva'ture of the guard strip 36 prevents its swinging upon the screw 37 so as to come into engagement with the valve stem. i r i The neumatics 27 connect through passages 38 of the top boards 23 and passages 39 in the-side strips 21 with the channels 17, of which thereare as many as there are manual keys on the key board. Ea'ch charm-- nel 17'is connected with one of the pneumatic pipevalvestof each stop section as above described and is controlled by a manual key on the key board so that .air under pressure isadmitted thereto when the key is depressed and is exhausted therefrom when the key;

is released. t

Each stop duct 20 connectsby a passage .40 with a valve throat 41in the end piece 11 which may cornmunicate with the universal chamber through an opening 42 or with the external air through an outlet passage 43 in a guide strip 44. Each-stop section is provided with a stop tube 45 which connects with a bellows or pneumatic 46' within the universal chamber, and a valve stem' 47 carried by the movable board of 1511011 pneumatic is" guidedin its movements by passing throu'glra-guide opening 48 in the guide strip/i4 and carries a disk valve 49 to close the opening 42 when the pneumatic is collapsed and a disk valve 50 to close the communication between the throat 41 and the external air when the pneumatic is inflated. A small feed duct 51 connects the passageway of pneumatic 46 with the universal chamber and an adjusting screw 52 controls .7 40m thestop' duct 20, to maintain the pressfireoi-the 55 universal chamber in the stop duct.

' When a stop is drawn, exhausting the air from the pneumatic 46 connected therewith, the pneumatic collapses by the pressure received by it from the compiessefl air in the universal chamber, closing valve 49 opening valve 50. This changeinnosition of valves 19i andz50 immediately exhausts the stop duct 20 connectedjtherewith.

' When a manual key is depressed soas to admit comgpress'ed air to its channel dl this airwill pass through passageways 39 and 38 of one of the pneumatic pipevalves in each stop section and exert its pressure upon the upper surface of the membrane oithe pneumatic 27 thereof, but owing to the pressure of air in the stop duct on the under side of the membrane which is equal to the air pressure above, the pneumatic is not affected and the disk 'valiie controlled thereby is not disturbed. This is only true of such stop sections in which the stop duct is charged with compressed air as above described, for when he compressed air is admitted to a pneumatic 27 contained in a stop duct-from which the compressed air has been exhausted, the said pneumatic becomes inflated, pulling the valve stem 29 against the action of spring 34fand removing the disk valve 31 from the pipe duct and; causing the pipe which is planted on said pips duct to speak. Whenthe manual key is released and the pressure within the channel 17 is exhausted, the spring 3'4 and compressed air willquickly restore the pipe disk valve 31 to its seat without unnecessary loss of time, owing to the limitation to the opening thereof by the guard 36. I

When the stop is again closed the flow of compressed air through duct 51 creates a pressure within the pneumatic 46.and returns valve 50 to its closed position and 20 to be again charged with compressed air which will prevent the opening of any of the pneumatic pipevalves of that stop section. Thus the pipe-valves are. restrained by air pressure against opening in response to the operation of the manual keys'unless the stop ductfioi -that section is exhausted, and the control of air to each stop duct is made by means oithe draw stops.

Whenever repair or adjustment becomes necessary, any particular pipe-valve is quickly accessible by removing the connecting bar 16 on each side of the channel board 15 of the stop section in which that pipe valve is contained, thus freeing that particular channel board ,and permitting its removal with all of the pipe-valves thereon, without disturbing any of the other sections.

Usually any repair or adjustment necessary may be accoinplished without removing the top board 23 from the stop duct, but where access to the pnuemat-ic 27 is desired this top board may be freely removed by loosening screws 24. When the adjustment or repair is accomplished the channel board 15 may be quickly and easily replaced, and when the connecting bars 16 are fastened in place the operation is complete, withoutdisturbing other. stop sections and without disturbing any of the pipes. I

, The valve stems 29,,havin'g only one stationary guide, are easily assembled by anyone of ordinary skill, as it is impossible for them to bind as would be done if two or more stationary hearings were provided. The tube 30 enables the stationary'bearing to be'placed as close to the disk valve3l as possible, which is very desirable for steadying it in its operation, The'leather-fiber guidedrsk 33 forms an efficient guide-bearingu'or thev'alvestem and closure for the space within the tube, which will effectively guide the valve stem in its free'movements without permitting a material passage of air from the universal chamber to the interior of the tube. The

disk valve 31 is free to pefe'ctly seat itself over the bot;-

tom of tliepipe-duc't by giving in one direction or other as by its mounting; The 'guard'fiG by valve 49 to its open position, permitting the stop duct close to the lower leather nut 32 when the disk valve 31 is closed will prevent the disk valve from Y \vhen'the manual key is released. 5 The simplicity of the construction and the accemip ility of the parts facilitate adjustment andrepair, and 'kth'e general construction is such,,that having once been properly setup and adjusted, the parts are not liable t *become deianged and require repair. 4

I moving far from its seat so as to require less time in dds- 0 Whatl. claim as my invention is;

1.. it universal wind chest' for organs, comprising a" iuniversal'lchamber"uavlng pipe ducts, pipe-valves co ltrolliug communicationbetween the universal chamber and its-pipe ducts, pneumatics connected with the pipe:

valves; independent stop ducts communicating with the pneumatics on one side of their moving parts and key controlled channelscommunicating with the pneumatics on the other side of their moving parts.

2. A universal valve chestQtor organs, comprising a 2i) universal chamber having pipeducts, spring actuated pipe- .valves controlling communication between the universal the pipe-valves, independent stop ducts within which the pneumaticsare located, stop controlled means for charging and exhausting the 'stop'ducts, and key controlled 1 channels communicating with the pneumatics. 3 4. A universal valve chest for organs, comprising a universal chamber having pipe ducts 'and formed by a series oi stop sections, spring closed pipevalves for each tdp'aection controlling communication between the univernal chamber and its pipe ducts, pneumatics connected with the pipe-valves, tin-independent atop duct for each 40 atop section within which the pneumatics are located,

stopcontrolled means for each stop section for connecting'the stop duct of that stop section with the universal chamber or with the atmosphere. and key controlled channels commuhlcating with the pneumatics'.

'5, A universal valve chest for organs, comprising a universal chamber having pipe ducts and formed by a serles of stop sections, spring closed pipe-valves for each stop sectioncontrolling. communication between the uni- Q vzersal chamber and its pipe ducts,,pneumatics connected with the pipe-valves, an independent stop duct for each atop section within which the pneumatics are located. a pheumntic for each stop section located within the uni 'versal chamber and having means for connecting it with a draw stop at the organ, a double disk valve connected with said pneumatic and-controlling a passageway leadlog to the stop ductot that stop section and adapted to connect said passageway with the universal chamber in one pcsitionand with the atmosphere in another position,

, nd key controlled channels communicating with the pneusolmutics.

' 6s A universal valve chest for organs, comprising-a junlversal chamber having pipe ducts and formed bra series of stop sections, spring closed pipe valves-for each stop section controlling communication betweenthe uni- 5fversal chamber and its pipe ducts. pneumatics connected .with the pipe-valves, an independent stop duct for each stop section within which the pneumatics are located. 1 pneumatic for each stop section located within the not versal chamber and having means for connecting it with 10 a draw stop of the organ, therebeing an adjustably con trolled-passageway leading from the universal chamber to theinterior of said pneumatic, a valve stem connected 'wwith said' pneumatic, a pair of disk valves carried bythe -"valve stem tor alternately closing ports leading from a ,75 passageway of the stopduct to the universal chamber and to the atmosphere, and key controlled channels communicating withthepneumatics ot the pipe-valves.

7. A pipe-valve tor wind chests of organs, comprising a tube, a pneumntlc'atone end of thetube, a valve stem connected with the pneu attic and passing} through the tube. a guide disk at the iothei en do'f tlie'iub efihrough whichthe valve stem passes permlttiiig "mqvements of .the valve stem without a iiiaterialipas'sag'e' ot'a'ir therethrough, and a disk valve carriedbp'thevalve stem.

8. A pipe-valve for wind chests ml organs, comprising a tube,- a pneumatic at one 'ejndf'of theftu befa valve stem connected with the pneumatic'j aud ,flthroughthe tube, a lea her fiber guide disk sef into'tli oth erend of the tube and having an opening through which the valve stem passes permitting movements of the valve stem without a material passage of air .therethrough, and a disk valve carried by the valve stem and adapted -to be moved into and out of engagement with a pipe d'uct.

9. A pipe-valve for wind chests of organs, comprising a tube, a pneumatic at one end of. the tube, a valve stem connected with the pneumatic and passing through the tube, a guide disk at the other endot the tube permitting movements ,or the valve stem without a material passage of air ther'ethrough,, a disk valvecarried by the valve stem andfadapted to be moved into and out of engagement with a pipe duct, a. spri ng seated on the guide disk and surrounding the valve stem, and a nut on the valve stem engaging the spring. v

10. A pipe valve for wind chests otorg'ans, comprising a tube, a pneumatic a t one end of the tube, a valve stem connected with'the pneumatic and passing through the tube,- a guide disk at the other end of the tube permitting the movements otthe valve stem without a material b passage of air therethrough, a disk valve carried by the valve stem and adapted to moved into and out of engagement with a pipe duct, a spring seated on the guide disk and surrounding the valve stem, a nut on the valve stem engaging the springfand-a guardadjustably mounted on the tube and standing in the path of"the disk valve for limiting the movement of the disk valve from its seat.

11. A pipe valve for wind chests ot'organs, comprising a tube, a pneumatic at one-end of the tube, a valve stem connected with the pneumatic and passing through the tube, a guide disk at the other end of the tube permitting movements of the valve'stein without a material passage of-air therethrough, .a'disk valve carried by the valve stemand adapted to be moved into and out of engagement with a pipe duct, a spring seated on the guide 'disk and surrounding the valve stem, a nut on the valve stem engaging the springjand a guard comprising a strip of metal adjustably secured to the tube with its end bent at an angle and forked to .pass on opposite sides of the valve stem and standing in the path of the valve to limit the valve in its movements awayfrom its seat.

12. A pipe valve for wind chests of organs. comprising a tube, a pneumatic at one end of the tube, a valve stem connected n'ith'the pneumatic and passing through the tube, a guide disk at the other end of they tube permit-- ting movements of the valve stem without a material passage of air therethrough, a disk valve carried by the. valve stem and adapted to be moved into and out of engagement with a pipe duct, a spring seated on the guide disk and surrounding the valve stem, a nut on the valve stem engaging. the' spring, and a guard comprisinga strip of metal curved to fit the tube and adjustably mounted thereon by having a screw passing through a slot thereof and entering the tube, the upper end of the strip being bent at an angle and forked to extend on opposite sides oi" the valve stem and stand in the pziill of the valve to limit the movements 01' the valve away from iii; seat.

A wind chest for pipe organs, comp open partitions extcnciug' closing the bottom of the frame with their meeting edges secured to the partitions and their channel sections com-- jmunicating with each .other, each channel board having an independent stop duct with pipe valves controlled thereby and communicating withthe channel sections.

' li-rA wind chest tor pipe organs, comprising a frame,

4 sea-res cated at the partitions, connecting bars extending along the meeting edges of the. bottom boards and having channel sections connecting the channel sections 0! abutting channel boards, and securing means passing through the -eonneeting bars and into the partitions for securing-the parts together, each'channei board having-an independent stop duct with pipe valves controlled thereby and communicating with the channel sections.

In testimony whereof, I am: my signature, in presence of two witnesses.

GEORGE 'wnrcxmmn'r.

Witnesses:

R. S. C. CALDWELL, ANNA F. Scnmm-nmim. 

